自守形式的研究是进入未知领域的旅程。
最优货币区是指能够以最小的实际经济干扰来稳定就业和价格的区域。
幸福是一种意识状态,它来自于一个人价值的实现。
The first step is to establish that something is possible; then probability will occur.
Science is not about being the first; it's about being patient and persistent.